lintian-junit-report: Allow passing options to lintian
lintian-junit-report: Allow passing options to lintian

This patch adds support for passing options directly to lintian,
allowing things like

lintian-junit-report \
    --lintian-opt=-Xsource-copyright,copyright-file *.deb

for those who like to break Debian Policy on purpose :). To be sure that
arguments are passed correctly lintian process is now executed with
IO::popen.

webtrekk-kane/jenkins-debian-glue,tonin/jenkins-debian-glue,wikimedia/operations-debs-jenkins-debian-glue,jbfavre/jenkins-debian-glue,bmiklautz/jenkins-debian-glue,hetznerZA/jenkins-debian-glue,hetznerZA/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,webtrekk-kane/jenkins-debian-glue,linuxmaniac/jenkins-debian-glue,jbfavre/jenkins-debian-glue,tonin/jenkins-debian-glue,wikimedia/operations-debs-jenkins-debian-glue,kartikm/jenkins-debian-glue,hashar/jenkins-debian-glue,cclausen/jenkins-debian-glue,vorlock/jenkins-debian-glue,hashar/jenkins-debian-glue,mika/jenkins-debian-glue,n054/jenkins-debian-glue,cclausen/jenkins-debian-glue,mika/jenkins-debian-glue,n054/jenkins-debian-glue,bmiklautz/jenkins-debian-glue,kartikm/jenkins-debian-glue,vorlock/jenkins-debian-glue,zeha/jenkins-debian-glue,zeha/jenkins-debian-glue